1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lilit [14]
3 years ago
13

A driver is 15 feet below the surface of the water 10 seconds after he entered the water and 90 feet below the surface after 40

seconds. What is the rate of change?
Mathematics
1 answer:
spin [16.1K]3 years ago
6 0

Answer:

\frac{-75ft}{30sec} or simplified would be \frac{-2.5ft}{sec}

Step-by-step explanation:

In order to calculate the rate of change, we must subtract his end position and end time by the starting position and starting time. We are using the -15 feet since it is below the surface area as the starting position and the 10 seconds as the starting time. We make each of these into a fraction and subtract like so...

\frac{-90ft - (-15ft)}{40sec - 10sec} = rate of change

\frac{-75ft}{30sec} = rate of change

\frac{-2.5ft}{sec} = rate of change

Therefore, we can see that the rate of change of the diver is \frac{-75ft}{30sec} or simplified would be \frac{-2.5ft}{sec}

You might be interested in
HELP ME!!! 4- 5/8 =?
BlackZzzverrR [31]

Answer:

27/8

Step-by-step explanation:

1.) 4-5/8

Convert element to fraction

2.) 4 x 8/8-5/8

3.) 4 x 8-5/8

4.) 27/8

7 0
3 years ago
Describe how the graph of y=|x| and how it is difficult
Ksju [112]
Y= to the absolute function of x?
<span>
</span>
4 0
3 years ago
Determine the intercepts of the line.<br> y=5x-13<br><br> Y-Intercept ( , )<br> X-Intercept ( , )
Arte-miy333 [17]

Answer:

Y-intercept is (0, -13)

X-intercept is at (13/5, 0)

Step-by-step explanation:

When it's in this form, y = mx + b, you automatically know what the y-intercept is (b).

So the y-intercept is (0, -13)

To algebraically find this, you'd plug in a 0 for x, since the y intercept is when it crosses the y-axis, which is located at x = 0.

To find the x intercept, you'd do the opposite of the y-intercept, which is plugging in a 0 for y and solving for x. The x-axis is located at y = 0.

0 = 5x - 13

13 = 5x

x = 13/5

The x-intercept is at (13/5, 0)

I hope this helped!

3 0
4 years ago
What is the diameter of a circle with a radius of 3.5 cm
Brums [2.3K]
The diameter of a circle is twice the size of the radius of that circle. Because the radius is 3.5 centimeters, the diameter is two times that, which is 7 centimeters. Hope this helps! And PLEASE pick me as brainliest!!!! Please
4 0
4 years ago
Read 2 more answers
What is the area of the composite figure?
mars1129 [50]

Answer:

34.9^2

Step-by-step explanation:

Well if one side is 4 cm then the square is 16cm^2.

The area of a circle is pi r^2.

So the radius is 2.

we plug 2 in.

pi 4

12.6/2

6.3

6.3 * 3 = 18.9cm^2

18.9 + 16 = 34.9

5 0
4 years ago
Other questions:
  • Select all of the coefficients in the expression. 12xy3 + 2x5y + 4x5y2 + 7x5y.
    5·1 answer
  • An abstract sculpture in the form of a triangle has a base 21 meters and a height of 12 meters. Find the are of the triangle.
    10·1 answer
  • What is the number 56, 893, 000 in word form
    13·1 answer
  • Tell whether the ordered pair is a solution to the given in equality (-2,1);y&lt;-2x+7
    11·1 answer
  • Compare 3.21 and 0.2
    11·2 answers
  • Find the mean, median, and mode 77, 92, 80, 92.​
    5·1 answer
  • Can someone help me with this question I retake this picture
    6·1 answer
  • Disney held a breakfast for parents and their children to eat with Mickey Mouse. Adult tickets cost $17.95 and children’s ticket
    8·1 answer
  • Interior and Exterior of Triangles
    11·2 answers
  • I am having some problem can anyone please help me out to do this math.<br><br>(x + 3)(x + 4)​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!